Make debug messages more informative

https://github.com/fs/codeclimate_ci/issues/18
```ruby
def wait_and_refresh! 
  inrement_retry_counter
  Report.result_not_ready(@retry_counter, @branch)
  refresh!
  sleep(sleep_time)
end

def inrement_retry_counter
  @retry_counter ||= 0
  @retry_counter += 1
end
```